US4424153AExpiredUtility

1:2 Chromium complex dyes containing sulfonic acid groups

59
Assignee: BASF AGPriority: Sep 10, 1980Filed: Aug 24, 1981Granted: Jan 3, 1984
Est. expirySep 10, 2000(expired)· nominal 20-yr term from priority
Inventors:Hans-Peter BaumannKlaus Grychtol
C09B 55/001
59
PatentIndex Score
5
Cited by
10
References
3
Claims

Abstract

1:2 Chromium complexes of arylazo-azamethines of the general formula ##STR1## where A is a naphthalene or benzene radical which may be monosubstituted or polysubstituted by alkyl, alkoxy or halogen.

Claims

exact text as granted — not AI-modified
What is claimed as new and desired to be secured by Letters Patent of the United States is: 
     
       1. A 1:2 chromium complex dye of an arylazo-azamethine of the general formula: ##STR4## as a salt; where A is naphthalene or benzene radical which may be monosubstituted or polysubstituted by alkyl, alkoxy or halogen. 
     
     
       2. The chromium complex dye of claim 1 wherein A is phenylene optionally substituted by chlorine, methyl or methoxy. 
     
     
       3. A 1:2 chromium complex dye of an arylazoazamethine of the formula: ##STR5## as the sodium salt.

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